Phys.org news tagged with:supernovashttp://phys.org/
en-usPhys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.Image: Space selfie from XMM-Newton X-ray observatoryLaunched on 10 December 1999, XMM-Newton is an X-ray observatory designed to investigate some of the most violent phenomena in the Universe. Sources that emit large amounts of X-rays include remnants of supernova explosions and the surroundings of black holes.http://phys.org/news/2016-12-image-space-selfie-xmm-newton-x-ray.html
Space Exploration Thu, 08 Dec 2016 08:45:33 ESTnews400409127Researchers propose low-mass supernova triggered formation of solar systemA research team led by University of Minnesota School of Physics and Astronomy Professor Yong-Zhong Qian uses new models and evidence from meteorites to show that a low-mass supernova triggered the formation of our solar system.http://phys.org/news/2016-11-low-mass-supernova-triggered-formation-solar.html
Astronomy Mon, 28 Nov 2016 15:55:06 ESTnews399570897Violent collision of massive supernova with surrounding gas powers superluminous supernovaeIn a unique study, an international team of researchers including members from the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) simulated the violent collisions between supernovae and its surrounding gas— which is ejected before a supernova explosion, thereby giving off an extreme brightness.http://phys.org/news/2016-11-violent-collision-massive-supernova-gas.html
Astronomy Mon, 28 Nov 2016 07:37:55 ESTnews399541012The Super-Kamiokande detector awaits neutrinos from a supernovaOnly three or four supernovas happen in our galaxy every century. These are super-energetic events that release neutrinos at the speed of light. At the Super-Kamiokande detector in Japan, a new computer system has been installed in order to monitor in real time and inform the scientific community of the arrival of these mysterious particles, which can offer crucial information on the collapse of stars and the formation of black holes.http://phys.org/news/2016-11-super-kamiokande-detector-awaits-neutrinos-supernova.html
Astronomy Thu, 10 Nov 2016 11:08:52 ESTnews397998523Scientists catalog nearly 100 dusty globules in the Crab NebulaResearchers from Sweden have recently studied the presence of dust in the Crab Nebula to locate and characterize numerous dusty globules of this well-known supernova remnant. As a result, they have cataloged 92 dusty globules and derived their properties. A paper describing the research was published Oct. 26 on the arXiv pre-print repository.http://phys.org/news/2016-11-scientists-dusty-globules-crab-nebula.html
Astronomy Fri, 04 Nov 2016 08:00:01 ESTnews397461756Hypervariable galactic nucleiExtreme variability in the intensity of the optical light of galaxies, by factors of two or more, is of great interest to astronomers. It can flag the presence of rare types of supernovae, for example, or spot sudden accretion activity around quiescent black holes or around the supermassive black hole at the galaxy's nucleus. In recent years systematic searches for such variability have been made using instruments that can survey wide swaths of the sky. One, the Panoramic Survey Telescope & Rapid Response System (PanSTARRS), is a facility capable very wide-field imaging using a combination of relatively small mirrors coupled with very large digital cameras, and it can observe the entire sky accessible to it several times a month.http://phys.org/news/2016-10-hypervariable-galactic-nuclei.html
Astronomy Mon, 31 Oct 2016 07:32:44 ESTnews397117956The universe is expanding at an accelerating rate—or is it?Five years ago, the Nobel Prize in Physics was awarded to three astronomers for their discovery, in the late 1990s, that the universe is expanding at an accelerating pace.http://phys.org/news/2016-10-universe-rateor.html
Astronomy Fri, 21 Oct 2016 11:18:49 ESTnews396267522Detonating white dwarfs as supernovaeA new mathematical model created by astrophysicists at the American Museum of Natural History details a way that dead stars called white dwarfs could detonate, producing a type of explosion that is instrumental to measuring the extreme distances in our universe. The mechanism, described in the Monthly Notices of the Royal Astronomical Society, could improve our understanding of how Type Ia supernovae form.http://phys.org/news/2016-10-detonating-white-dwarfs-supernovae.html
Astronomy Tue, 04 Oct 2016 15:35:14 ESTnews394814107The ultraviolet diversity of supernovaeSupernovae, the explosive deaths of massive stars, are among the most momentous events in the cosmos because they disburse into space all of the chemical elements that were produced inside their progenitor stars, including the elements essential for making planets and life. One class of supernovae (Type Ia) provides yet another benefit: these objects are considered to be standard distance candles. They result when enough material from an orbiting companion star falls onto the progenitor star to trigger it to explode.http://phys.org/news/2016-09-ultraviolet-diversity-supernovae.html
Astronomy Wed, 28 Sep 2016 07:31:38 ESTnews394266690Young magnetar likely the slowest pulsar ever detectedUsing NASA's Chandra X-ray Observatory and other X-ray observatories, astronomers have found evidence for what is likely one of the most extreme pulsars, or rotating neutron stars, ever detected. The source exhibits properties of a highly magnetized neutron star, or magnetar, yet its deduced spin period is thousands of times longer than any pulsar ever observed.http://phys.org/news/2016-09-young-magnetar-slowest-pulsar.html
Astronomy Thu, 08 Sep 2016 14:15:06 ESTnews392562894Astronomers discover a large cavity around the Tycho's supernovaChinese astronomers have detected a large cavity existing around Tycho's supernova, also know as SN 1572, exhibiting stream-like structures. The findings, reported in a paper published Aug. 18 on arXiv.org, show that the environments of the supernovae may be much more complicated than previously thought.http://phys.org/news/2016-08-astronomers-large-cavity-tycho-supernova.html
Astronomy Tue, 23 Aug 2016 07:00:01 ESTnews391153969Image: Hubble Investigates Stellar ShrapnelSeveral thousand years ago, a star some 160,000 light-years away from us exploded, scattering stellar shrapnel across the sky. The aftermath of this energetic detonation is shown here in this striking image from the NASA/ESA Hubble Space Telescope's Wide Field Camera 3.http://phys.org/news/2016-08-image-hubble-stellar-shrapnel.html
Astronomy Mon, 22 Aug 2016 07:30:15 ESTnews391069803Supernova ejected from the pages of historyA new look at the debris from an exploded star in our galaxy has astronomers re-examining when the supernova actually happened. Recent observations of the supernova remnant called G11.2-0.3 with NASA's Chandra X-ray Observatory have stripped away its connection to an event recorded by the Chinese in 386 CE.http://phys.org/news/2016-08-supernova-ejected-pages-history.html
Astronomy Wed, 17 Aug 2016 17:16:13 ESTnews390672945Faintest hisses from space reveal famous star's past lifeAstronomers have managed to peer into the past of a nearby star millions of years before its famous explosion, using a telescope in remote outback Australia at a site free from FM radio interference.http://phys.org/news/2016-08-faintest-hisses-space-reveal-famous.html
Astronomy Mon, 01 Aug 2016 20:00:02 ESTnews389280381Image: Hubble gazes at long-dead starThis NASA/ESA Hubble Space Telescope image captures the remnants of a long-dead star. These rippling wisps of ionized gas, named DEM L316A, are located some 160,000 light-years away within one of the Milky Way's closest galactic neighbors—the Large Magellanic Cloud (LMC).http://phys.org/news/2016-08-image-hubble-long-dead-star.html
Astronomy Mon, 01 Aug 2016 08:22:04 ESTnews389258499Scientists observe a superluminous supernova that appears to have exploded twiceSupernovae are among the most violent phenomena in the universe. They are huge explosions that end the lives of certain types of stars. These explosions release immense amounts of energy, so much that some can be observed from Earth with the naked eye, appearing as points of light that are briefly brighter than all the millions of stars in the galaxies where they are found. Following an intense burst of light lasting a few weeks, supernovae start to fade gradually until they have effectively burned out.http://phys.org/news/2016-07-scientists-superluminous-supernova.html
Astronomy Wed, 27 Jul 2016 07:08:25 ESTnews388822092A 'matryoshka' in the interstellar mediumAs if it were one of the known Russian dolls, a group of astronomers, led by researchers at the Instituto de Astrofísica de Canarias, (IAC) has found the first known case of three supernova remnants one inside the other. Using the programme BUBBLY, a method developed within the group for detecting huge expanding bubbles of gas in interstellar space, they were observing the galaxy M33 in our Local Group of galaxies and found example of a triple-bubble. The results, which were published yesterday in the journal Monthly Notices of the Royal Astronomical Society, help to understand the feedback phenomenon, a fundamental process of star formation and in the dissemination of metals produced in massive stars.http://phys.org/news/2016-07-matryoshka-interstellar-medium.html
Astronomy Thu, 14 Jul 2016 09:46:24 ESTnews387708371Blue is an indicator of first star's supernova explosionsAn international collaboration led by the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) have discovered that the color of supernovae during a specific phase could be an indicator for detecting the most distant and oldest supernovae in the Universe - more than 13 billion years old.http://phys.org/news/2016-07-blue-indicator-star-supernova-explosions.html
Astronomy Tue, 12 Jul 2016 08:14:07 ESTnews387530025Astrophysicists release new study of one of the first starsNo one has yet observed the first stars that formed in the Milky Way. In all likelihood, they will never be directly observed, because the first stars are massive, ending their lives only a few millions years after their birth.http://phys.org/news/2016-06-astrophysicists-stars.html
Astronomy Fri, 17 Jun 2016 13:03:50 ESTnews385387418Collaboration uncovers the origin of extraordinary supernovaeAstronomers using the OISTER telescope consortium in Japan have uncovered new information about the origin of 'extraordinary supernovae' explosions, which are brighter than normal ones. This new information will help improve measurements of the Universe's expansion, and of the Dark Energy which controls the final fate of the cosmos.http://phys.org/news/2016-06-collaboration-uncovers-extraordinary-supernovae.html
Astronomy Tue, 07 Jun 2016 09:19:40 ESTnews384509950Hubble finds universe may be expanding faster than expectedAstronomers using NASA's Hubble Space Telescope have discovered that the universe is expanding 5 percent to 9 percent faster than expected.http://phys.org/news/2016-06-hubble-universe-faster.html
Astronomy Thu, 02 Jun 2016 11:47:32 ESTnews384086838Blowing bubbles in the Milky Way's magnetic fieldAn international team of astronomers has discovered a possible connection between the magnetic fields of supernova remnants and that of our own Milky Way Galaxy. The study, recently published in the journal Astronomy & Astrophysics, found that the orientation of supernova remnants can help astronomers understand the nature and shape of the magnetic field of the Milky Way Galaxy itself.http://phys.org/news/2016-06-milky-magnetic-field.html
Astronomy Wed, 01 Jun 2016 07:30:01 ESTnews383983363Astronomers discover an unusual, slowly evolving superluminous supernova(Phys.org)—A team of astronomers has found a hydrogen-poor superluminous supernova with exceptional properties. According to a research paper published online on May 17, on the arXiv pre-print server, the cosmic explosion, designated PS1-14bj, shows an exceptionally slow rise to maximum light and a very leisurely fade-out. It the longest rise time measured in a superluminous supernova to date.http://phys.org/news/2016-05-astronomers-unusual-slowly-evolving-superluminous.html
Astronomy Wed, 25 May 2016 09:00:02 ESTnews383374111Supernova reserve fuel tank clue to big parentsSome supernovae have a reserve tank of radioactive fuel that cuts in and powers their explosions for three times longer than astronomers had previously thought.http://phys.org/news/2016-05-supernova-reserve-fuel-tank-clue.html
Astronomy Wed, 18 May 2016 10:17:13 ESTnews382785425Tycho's supernova remnant: Chandra movie captures expanding debris from a stellar explosionWhen the star that created this supernova remnant exploded in 1572, it was so bright that it was visible during the day. And though he wasn't the first or only person to observe this stellar spectacle, the Danish astronomer Tycho Brahe wrote a book about his extensive observations of the event, gaining the honor of it being named after him.http://phys.org/news/2016-05-tycho-supernova-remnant-chandra-movie.html
Astronomy Thu, 12 May 2016 16:01:31 ESTnews382287662Astronomers spot hard X-ray emissions from a nearby supernova remnant Cassiopeia A(Phys.org)—A nearby young supernova remnant named Cassiopeia A is an excellent candidate for astrophysical observations regarding supernova explosion processes. One of the recent studies focuses on hard X-ray emissions from this source, describing a non-thermal continuum emission for the first time. A paper detailing the findings appeared online on May 2 on the arXiv pre-print server.http://phys.org/news/2016-05-astronomers-hard-x-ray-emissions-nearby.html
Astronomy Fri, 06 May 2016 09:00:04 ESTnews381731973NASA's WFIRST spacecraft offers a huge step forward in our understanding of dark matterNASA's Wide Field Infrared Survey Telescope (WFIRST) could be a space observatory of the future, destined for great discoveries in the field of astrophysics. With a view about 100 times larger than that of the venerable Hubble Space Telescope, WFIRST is expected to yield crucial results about the elusive dark matter and dark energy.http://phys.org/news/2016-05-nasa-wfirst-spacecraft-huge-dark.html
Astronomy Mon, 02 May 2016 06:05:13 ESTnews381387900Examination of ancient text reveals details of Ibn Sina's sighting of supernova(Phys.org)—A trio of German researches has uncovered evidence of the Arabic scholar Ibn Sina's sighting of supernova 1006 (SN 1006). The new evidence will sit alongside that of others around that globe that reported details of what has been described as the brightest stellar event ever recorded by human beings. In their paper uploaded to the preprint server arXiv, Ralph Neuhaeuser, Carl Ehrig-Eggert and Paul Kunitzsch describe the text under study, their translation of it and the relevance of the information recorded by the ancient skygazer.http://phys.org/news/2016-04-ancient-text-reveals-ibn-sina.html
Astronomy Thu, 28 Apr 2016 09:45:58 ESTnews381055534Nearby massive star explosion 30 million years ago equaled detonation of 100 million sunsA giant star that exploded 30 million years ago in a galaxy near Earth had a radius prior to going supernova that was 200 times larger than our sun, according to astrophysicists at Southern Methodist University, Dallas.http://phys.org/news/2016-04-nearby-massive-star-explosion-million.html
Astronomy Tue, 26 Apr 2016 13:52:56 ESTnews380897565Microscopic 'clocks' time distance to source of galactic cosmic raysMost of the cosmic rays arriving at Earth from our galaxy come from nearby clusters of massive stars, according to new observations from the Cosmic Ray Isotope Spectrometer (CRIS), an instrument aboard NASA's Advanced Composition Explorer (ACE) spacecraft.http://phys.org/news/2016-04-microscopic-clocks-distance-source-galactic.html
Astronomy Thu, 21 Apr 2016 14:00:04 ESTnews380460343